Mine started doing something similar. I had a non start a couple of weeks back (the battery cables on the inner wing had corroded)and I had to disconnect the battery for a day to fix and clean them. After that it wouldn't idle properly when warm, it was slower than it was before I removed the battery. Only thing I could think of is it's the throttle body adaption that goes out of the window when the battery was off. It was perfect before the battery disconnect. I did a throttle body reset and it's much improved (not perfect but idle speed is back up to near normal when warm). I'm hoping that it'll relearn it's settings after a bit of driving about to finish sorting itself out.
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PF late '97 D2 2.8 Aluminium Silver. Solar roof, Full Heated Leather, Double Glazing, 17" wheels, Sports Steering Wheel, Cruise, Blinds, Bose sound.
Fiat Tipo diseasel econobox with all the buttons and none of the soul that now does all the heavy lifting.
Ford Capri Laser: noisy, slow, thirsty, bouncy, no buttons but it always sounds like it’s REALLY trying and I can’t help but chuckle when it parps and boings along. And people of a certain age stare at it with a wistful look in their eyes that clearly says…I had one of them. And I sold it because of the kids 
Last edited by B@fink; 11th May 2015 at 07:46 PM.
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